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Lizardite
Lizardite

Dumortierite
Dumortierite



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Lizardite
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Dumortierite

Lizardite and Dumortierite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Strong; X = deep blue or violet; Y = yellow to red-violet or nearly colorless; Z = colorless or very pale blue
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
None
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
TranslucentAnthony et al, Handbook of mineralogy (2001)
Translucent, Translucent to opaque
1.5 Refractive Index
1.538-1.560
1.669-1.723
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available
0.011-0.037
1.9 Clarity
TranslucentAnthony et al
Translucent

Lizardite and Dumortierite Optic Character

Lizardite and Dumortierite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Lizardite and Dumortierite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Lizardite and Dumortierite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Lizardite and Dumortierite Transparency

Similar to their colors, Lizardite and Dumortierite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Lizardite is Handbook of mineralogy (2001) and TranslucentAnthony et al while Lizardite is Handbook of mineralogy (2001) and TranslucentAnthony et al in appearance.